176
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Pamnani V, Haas B, Pühler G, Sänger HL, Baumeister W. Proteasome-associated RNAs are non-specific. EUROPEAN JOURNAL OF BIOCHEMISTRY 1994; 225:511-9. [PMID: 7525280 DOI: 10.1111/j.1432-1033.1994.00511.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The RNA isolated from RNase-treated proteasome preparations from human erythrocytes, HeLa cells, the archaeon Thermoplasma acidophilum and also from recombinant proteasomes of T. acidophilum expressed in Escherichia coli was characterized. The RNA associated with structurally similar protein particles, namely with the two molecular chaperones, groEL from E. coli and with the thermosome from T. acidophilum, served as controls. Electrophoretic analysis on polyacrylamide gels of the radioactively end-labelled RNA revealed a very similar size distribution pattern, irrespectively of the protein particles from which they had been isolated. The predominant RNA species were in the size ranges 80 nucleotides and 120 nucleotides, respectively. Partial sequencing of their terminal regions by mobility-shift analysis revealed that, of the proteasomes from human erythrocytes, the approximately 80-nucleotide-long RNA consists of a heterogenous population of mostly tRNA species because they carried the tRNA-specific 3'-terminal sequence motif 5'-CCA-3'. The RNA in the size range 120 nucleotides isolated from the proteasomes of human erythrocytes and of T. acidophilum was also heterogeneous and displayed, in the terminal regions, a remarkable sequence similarity to the corresponding regions of the 5S rRNA from the same and different organisms. The total content of RNA of all the protein particles was quantified and found to be consistently sub-stoichiometric. All these findings strongly suggest that RNA associated with the proteasomes and with the molecular chaperones originate from the abundant cellular pool of the tRNAs and 5S rRNAs which bind non-specifically to these large protein particles.
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177
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Fender M, Arveiler D, Facello A, Marine-Barjoan E, Uettwiller E, Jacques D, Veron C, Meyer V, Haas B, Hedelin G. [Towards a decrease of myocardial infarction in the Bas-Rhin region? Results of the 6 first years of the Strasbourg MONIC Register]. Ann Cardiol Angeiol (Paris) 1994; 43:373-9. [PMID: 7993030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The Bas-Rhin MONICA Register shows trends in myocardial infarction and other acute ischemic events between 1984 and 1989. Coronary heart disease mortality decreased by 27% in men and 30% in women. Morbidity trends were less favourable. The annual event rate for total acute ischemic events remained stable. However, a decrease of 14% for myocardial infarction was seen in men, particularly in patients with a past history of coronary disease. Another positive point is that the 28-day mortality rate in recent infarctions decreased in men by 33% during the 5 year period.
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178
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Schwarz S, Haas B, Luley C, Schäfer JR, Steinmetz A. Quantification of apolipoprotein A-IV in human plasma by immunonephelometry. Clin Chem 1994. [DOI: 10.1093/clinchem/40.9.1717] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
We developed a nephelometric procedure for determining concentrations of human plasma apolipoprotein (apo) A-IV. Results obtained correlate well with those measured by an established electroimmunodiffusion assay (r = 0.98; n = 56). Intra- and interassay CVs were 2.4% and 2.0%, respectively, indicating excellent precision and reproducibility. Various conditions of sample treatment, such as adequate storage, freezing, and thawing, did not affect results significantly. However, keeping samples at room temperature for 4 days led to a slight increase in measured values. Preincubation with a cholesterinesterase-detergent mixture abolished interference from triglyceride-rich lipoproteins, allowing assay of samples containing triglycerides as great as 10 g/L. The assay is easily applicable to clinical laboratories for routine diagnostic use, as shown with hypertriglyceridemic plasmas and samples with a broad range of apo A-IV concentrations.
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179
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Schwarz S, Haas B, Luley C, Schäfer JR, Steinmetz A. Quantification of apolipoprotein A-IV in human plasma by immunonephelometry. Clin Chem 1994; 40:1717-21. [PMID: 8070081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We developed a nephelometric procedure for determining concentrations of human plasma apolipoprotein (apo) A-IV. Results obtained correlate well with those measured by an established electroimmunodiffusion assay (r = 0.98; n = 56). Intra- and interassay CVs were 2.4% and 2.0%, respectively, indicating excellent precision and reproducibility. Various conditions of sample treatment, such as adequate storage, freezing, and thawing, did not affect results significantly. However, keeping samples at room temperature for 4 days led to a slight increase in measured values. Preincubation with a cholesterinesterase-detergent mixture abolished interference from triglyceride-rich lipoproteins, allowing assay of samples containing triglycerides as great as 10 g/L. The assay is easily applicable to clinical laboratories for routine diagnostic use, as shown with hypertriglyceridemic plasmas and samples with a broad range of apo A-IV concentrations.
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180
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Fallon P, Beausang CW, Clarke S, Twin PJ, Beck FA, Byrski T, Curien D, Dagnall PJ, deFrance G, Duchêne G, Forsyth PD, Haas B, Joyce MJ, Macchiavelli AO, Paul ES, Sharpey-Schafer JF, Simpson J, Vivien JP, Åberg S, Nazarewicz W. Pair excitations and a proton band crossing in superdeformed 150Gd. PHYSICAL REVIEW LETTERS 1994; 73:782-785. [PMID: 10057538 DOI: 10.1103/physrevlett.73.782] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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181
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Wirblich C, Meyers G, Ohlinger VF, Capucci L, Eskens U, Haas B, Thiel HJ. European brown hare syndrome virus: relationship to rabbit hemorrhagic disease virus and other caliciviruses. J Virol 1994; 68:5164-73. [PMID: 7518531 PMCID: PMC236460 DOI: 10.1128/jvi.68.8.5164-5173.1994] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Monoclonal antibodies directed against the capsid protein of rabbit hemorrhagic disease virus (RHDV) were used to identify field cases of European brown hare syndrome (EBHS) and to distinguish between RHDV and the virus responsible for EBHS. Western blot (immunoblot) analysis of liver extract of an EBHS virus (EBHSV)-infected hare revealed a single major capsid protein species of approximately 60 kDa that shared epitopes with the capsid protein of RHDV. RNA isolated from the liver of an EBHSV-infected hare contained two viral RNA species of 7.5 and 2.2 kb that comigrated with the genomic and subgenomic RNAs of RHDV and were recognized by labeled RHDV cDNA in Northern (RNA) hybridizations. The nucleotide sequence of the 3' 2.8 kb of the EBHSV genome was determined from four overlapping cDNA clones. Sequence analysis revealed an open reading frame that contains part of the putative RNA polymerase gene and the complete capsid protein gene. This particular genome organization is shared by RHDV but not by other known caliciviruses. The deduced amino acid sequence of the capsid protein of EBHSV was compared with the capsid protein sequences of RDDV and other caliciviruses. The amino acid sequence comparisons revealed that EBHSV is closely related to RHDV and distantly related to other caliciviruses. On the basis of their genome organization, it is suggested that caliciviruses be divided into three groups.
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182
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Flibotte S, Andrews HR, Ball GC, Beausang CW, Beck FA, Belier G, Byrski T, Curien D, Dagnall PJ, Disdier D, Duchêne G, Finck C, Haas B, Hackman G, Haslip DS, Janzen VP, Kharraja B, Lisle JC, Merdinger JC, Mullins SM, Nazarewicz W, Radford DC, Rauch V, Savajols H, Styczen J, Theisen C, Twin PJ, Vivien JP, Waddington JC, Ward D, Zuber K, Åberg S. Delta I=4 bifurcation in a superdeformed band: Evidence for a C4 symmetry. PHYSICAL REVIEW LETTERS 1993; 71:4299-4302. [PMID: 10055211 DOI: 10.1103/physrevlett.71.4299] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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183
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Groschup MH, Brun A, Haas B. Serological studies on the potential synergism of porcine reproductive and respiratory syndrome virus and influenza-, corona- and paramyxoviruses in the induction of respiratory symptoms in swine. ZENTRALBLATT FUR VETERINARMEDIZIN. REIHE B. JOURNAL OF VETERINARY MEDICINE. SERIES B 1993; 40:681-9. [PMID: 8128802 DOI: 10.1111/j.1439-0450.1993.tb00192.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sera from 265 finishing pigs belonging to 70 herds, in which severe respiratory disorders were observed, were examined for antibody prevalence to porcine reproductive and respiratory syndrome virus (PRRSV), influenza virus subtypes H3N2 and H1N1, porcine respiratory corona virus (PRCV) and a recently described porcine paramyxovirus (PPMV). By immunoperoxidase-monolayer assay 69.1% of these sera were positive for PRRSV. Hemagglutination inhibiting activity was found in 55.1% of the sera for influenza virus subtype H1N1 (strain A/swine/Arnsberg/1/81). in 51.3% for influenza virus subtype H3N2 (strain A/Hong Kong/1/68) and in 14.3% for PPMV. PRCV specific antibodies, as determined by differential competitive blocking enzyme-linked immunosorbent assay were demonstrated in 192 of 236 (81.3%) sera. In order to reveal associations interspecific coefficients were calculated for antibody prevalence between PRRSV and the other viruses. Positive associations to PRRSV titres were found to PRCV, PPMV and influenza virus subtype H1N1 titres. chi-square analysis showed the statistical significance of associations regarding PRCV and influenza virus subtype H1N1. Depletion of lung macrophages after PRRSV infection is discussed as a possible mechanism for the promotion of secondary infections.
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184
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Curien D, Beausang CW, Beck FA, Byrski T, Clarke S, Dagnall P, Duchêne G, Flibotte S, Forbes S, Forsyth PD, Haas B, Joyce MA, Kharraja B, Nyakó BM, Schück C, Simpson J, Theisen C, Twin PJ, Vivien JP, Zolnai L. Deexcitation from superdeformed bands in 151Tb and neighboring A~150 nuclei. PHYSICAL REVIEW LETTERS 1993; 71:2559-2562. [PMID: 10054712 DOI: 10.1103/physrevlett.71.2559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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185
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Beausang CW, Fallon P, Clarke S, Beck FA, Byrski T, Curien D, Dagnall PJ, deFrance G, Duchêne G, Forsyth PD, Haas B, Joyce MJ, Macchiavelli AO, Paul ES, Sharpey-Schafer JF, Simpson J, Twin PJ, Vivien JP. Degenerate superdeformed states in 150Gd. PHYSICAL REVIEW LETTERS 1993; 71:1800-1803. [PMID: 10054503 DOI: 10.1103/physrevlett.71.1800] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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186
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Flibotte S, Hackman G, Theisen C, Andrews HR, Ball GC, Beausang CW, Beck FA, Belier G, Bentley MA, Byrski T, Curien D, Disdier D, Duchêne G, Fallon P, Haas B, Janzen VP, Jones PM, Kharraja B, Kuehner JA, Lisle JC, Merdinger JC, Mullins SM, Paul ES, Prévost D, Radford DC, Rauch V, Smith JF, Styczen J, Twin PJ, Vivien JP, Waddington JC, Ward D, Zuber K. Multiparticle excitations and identical bands in the superdeformed 149Gd nucleus. PHYSICAL REVIEW LETTERS 1993; 71:688-691. [PMID: 10055341 DOI: 10.1103/physrevlett.71.688] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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187
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Schiebel W, Haas B, Marinković S, Klanner A, Sänger HL. RNA-directed RNA polymerase from tomato leaves. I. Purification and physical properties. J Biol Chem 1993; 268:11851-7. [PMID: 7685022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
An RNA-directed RNA polymerase (RdRP, EC 2.7.7.48) from tomato leaf tissue was purified to electrophoretic homogeneity. A terminal transferase activity that was found to cofractionate with RdRP from DEAE-Sepharose and DNA-cellulose columns was removed by chromatography on a Mono Q column. The highly purified RdRP exhibits a specific activity of 500 nmol x mg-1 x 30 min-1, which corresponds to a 100,000-fold enrichment of the enzyme. In buffer containing 50% glycerol, its activity decreased by about 15%/month. RdRP activity coincided with the silver staining intensity of a single 128-kDa polypeptide when the fractions eluted from the Mono Q column were analyzed by electrophoresis in a SDS-polyacrylamide gel. Its molecular mass and its sedimentation coefficient of 6.6 S indicate that RdRP is a nearly globular molecule. The catalytic activity of RdRP is resistant to alpha-amanitin and actinomycin D. In tomato leaves systemically infected with potato spindle tuber viroid, the activity of RdRP was found to be increased about 3-fold compared with RdRP isolated from healthy leaf tissue.
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188
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Schiebel W, Haas B, Marinković S, Klanner A, Sänger HL. RNA-directed RNA polymerase from tomato leaves. II. Catalytic in vitro properties. J Biol Chem 1993; 268:11858-67. [PMID: 7685023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The catalytic properties of electrophoretically homogeneous RNA-directed RNA polymerase (RdRP, EC 2.7.7.48) from tomato leaf tissue were studied with the aid of oligonucleotides of defined sequence. It was found that RdRP catalyzes in vitro the transcription of short single-stranded RNA and DNA molecules into precisely complementary RNA copies up to the full length of these templates. The transcription of RNA- and DNA-oligonucleotide templates was equally effective. Differences in transcription efficiency were found to depend on nucleotide sequence rather than on the RNA or DNA nature of the single-stranded nucleic acid. Double-stranded nucleic acids such as poly(A).poly(U) and a double-stranded DNA 14-mer were not transcribed. The RdRP-directed transcription could be primed because RNA and DNA dinucleotides and trinucleotides complementary to the 3'-terminal nucleotides of the template were extended by the enzyme. The unprimed transcription was shown to start preferentially at the 3'-terminal nucleotides of the template. RdRP is capable of adding a single noncomplementary nucleotide to the 3' terminus of about 50% of the runoff transcripts. AMP was preferred over GMP, whereas CMP and UMP were terminally added at very low frequency.
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189
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Schiebel W, Haas B, Marinković S, Klanner A, Sänger H. RNA-directed RNA polymerase from tomato leaves. I. Purification and physical properties. J Biol Chem 1993. [DOI: 10.1016/s0021-9258(19)50278-2] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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190
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Duchêne G, Romain P, Beck FA, Benet P, Disdier D, Haas B, Lott B, Rauch V, Scheibling F, Vivien JP, Basu SK, Bozek E, Zuber K, Fernandez-Niello J. Angular momentum distributions for 16O+144Nd. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1993; 47:2043-2054. [PMID: 9968661 DOI: 10.1103/physrevc.47.2043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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191
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Haas B, Thiel HJ. [The hemorrhagic disease of rabbits. "Rabbit hemorrhagic disease" (RHD)]. DTW. DEUTSCHE TIERARZTLICHE WOCHENSCHRIFT 1993; 100:131-7. [PMID: 8387423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The rabbit hemorrhagic disease which was first described in 1984 caused high losses in rabbit holdings of many countries. The disease and its causative agent are reviewed with regard to clinical symptoms, pathology, etiology, molecular biology, diagnosis, epidemiology and control.
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192
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Janzen VP, Andrews HR, Haas B, Radford DC, Ward D, Omar A, Prévost D, Sawicki M, Unrau P, Waddington JC, Drake TE, Galindo-Uribarri A, Wyss R. The proton h11/2 intruder orbital: Evidence for collectivity and a strong proton-neutron interaction. PHYSICAL REVIEW LETTERS 1993; 70:1065-1068. [PMID: 10054277 DOI: 10.1103/physrevlett.70.1065] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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193
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Flibotte S, Andrews HR, Drake TE, Galindro-Uribarri A, Haas B, Janzen VP, Prévost D, Radford DC, Rodriguez J, Romain P, Vivien JP, Waddington JC, Ward D, Zwartz G. Entrance-channel effects in the population of superdeformed bands in 147,148Gd. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1992; 45:R889-R891. [PMID: 9967893 DOI: 10.1103/physrevc.45.r889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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194
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Smith G, Haas B, Alderson A, Ali I, Beausang CW, Bentley MA, Dagnall P, Fallon P, Forsyth PD, Huttmeier U, Romain P, Santos D, Twin PJ, Vivien JP. Entrance-channel effects in the population of superdeformed bands. PHYSICAL REVIEW LETTERS 1992; 68:158-161. [PMID: 10045550 DOI: 10.1103/physrevlett.68.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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195
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Luley CH, Haas B, Bührer B, Wieland H. Improvement of apolipoprotein E phenotyping by isoelectric focusing/immunofixation. Clin Chem 1992; 38:168. [PMID: 1733597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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196
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Haas B, Kraut J, Marks J, Zanker SC, Castignetti D. Siderophore presence in sputa of cystic fibrosis patients. Infect Immun 1991; 59:3997-4000. [PMID: 1834571 PMCID: PMC258988 DOI: 10.1128/iai.59.11.3997-4000.1991] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Sputum samples from the lungs of cystic fibrosis patients harboring Pseudomonas aeruginosa infections were collected and examined for the presence of the siderophore pyoverdine. Fluorescence quenching, due to the addition of ferric ion, as well as column and thin-layer chromatography results indicated that all samples contained the siderophore. Six samples furnished sufficient material after purification to allow us to obtain visible absorbance spectra. These spectra were characteristic of the ferrated analog of the P. aeruginosa pyoverdine, that is, ferripyoverdine, and in all cases they indicated a degree of ferration in excess of 50%. P. aeruginosa in the cystic fibrosis lung is thus iron stressed and responds by synthesizing pyoverdine, which subsequently binds ferric ion.
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197
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Haas B, Murphy E, Castignetti D. Siderophore synthesis by mucoid Pseudomonas aeruginosa strains isolated from cystic fibrosis patients. Can J Microbiol 1991; 37:654-7. [PMID: 1835428 DOI: 10.1139/m91-111] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nonmucoid Pseudomonas aeruginosa responds to iron deprivation by synthesizing the siderophores pyochelin and pyoverdine. When grown in iron-deficient medium, six mucoid P. aeruginosa strains isolated from cystic fibrosis patients synthesized copious amounts of the exopolysaccharide alginate. A procedure that eliminated the interference of alginate was developed so that siderophores could be extracted from the growth medium. All six isolates were then noted to produce both pyoverdine and pyochelin. This report thus confirms that mucoid P. aeruginosa, like its nonmucoid counterparts, elicits the siderophores commonly cited as those of the microbe.
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198
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Thoennessen M, Beene JR, Bertrand FE, Horen DJ, Halbert ML, Hensley DC, Lisantti JE, Mittig W, Schutz Y, Alamanos N, Auger F, Barrette J, Fernandez B, Gillibert A, Haas B, Vivien JP, Nathan AM. High-energy target excitations in heavy ion inelastic scattering. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1991; 43:12-15. [PMID: 9967040 DOI: 10.1103/physrevc.43.r12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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199
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Haas B, Ward D, Andrews HR, Ball GC, Drake TE, Flibotte S, Galindo-Uribarri A, Janzen VP, Johansson JK, Kluge H, Kuehner J, Omar A, Pilotte S, Prevost D, Rodriguez J, Radford DC, Taras P, Vivien JP, Waddington JC, Aberg S. Observation of excited proton and neutron configurations in the superdeformed 149Gd nucleus. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1990; 42:1817-1821. [PMID: 9966921 DOI: 10.1103/physrevc.42.r1817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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200
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Weiland E, Stark R, Haas B, Rümenapf T, Meyers G, Thiel HJ. Pestivirus glycoprotein which induces neutralizing antibodies forms part of a disulfide-linked heterodimer. J Virol 1990; 64:3563-9. [PMID: 2370675 PMCID: PMC249648 DOI: 10.1128/jvi.64.8.3563-3569.1990] [Citation(s) in RCA: 202] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Neutralizing monoclonal antibodies directed against hog cholera virus (HCV) precipitated two HCV-encoded glycoproteins, HCV gp55 and HCV gp33. Immunoassay with bacterial fusion proteins and Western immunoblotting with extracts from infected cells revealed that the antibodies recognized only HCV gp55. Coprecipitation of HCV gp33 was shown to be due to intermolecular disulfide bridges. One of the antibodies also reacted with the major glycoprotein of another pestivirus, bovine viral diarrhea virus (BVDV). The analogous BVDV glycoproteins exhibited a distribution of cysteine residues which was almost identical to that of HCV gp55 and gp33. The two BVDV glycoproteins were also linked by disulfide bridges.
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